 | James Ferguson - 1776 - عدد الصفحات: 546
...to it, and not ufed until it be thoroughly dry. LECT. r fyf LEC T. VIII. Of Optics. LIGHT confifts of an inconceivably great number of particles flowing from a luminous body in all manner of directions ; and thefe particles are fo fmall, as to furpafs all human comprehenfion. That the number of particles... | |
 | Sir Richard Phillips - 1807 - عدد الصفحات: 212
...applied to the measurement of distances, when no better method can conveniently be used. OPTICS. 182. Light consists of an inconceivably great number of...flowing from a luminous body in all manner of directions By a ray of light, is meant the motion of a single particle. Example. The light of a candle, if there... | |
 | Sir Richard Phillips - 1811 - عدد الصفحات: 196
...when no better method can conveniently be used. OPTICS. 180. Light consists of an inconceivablygreat number of particles flowing from a luminous body in all manner of directions. By a ray of light is meant, the motion of a single particle. Examflf. The light of a candle, if there... | |
 | James Ferguson - 1814 - عدد الصفحات: 420
...thermometer wheii laced in condensed airi as mentioned in a preceding note. — LECTURE VII. Of Optics. LIGHT consists of an inconceivably great number of...from a luminous' body in all manner of directions ; and these particles are so small, as to surpass all human comprehension. That the number of particles... | |
 | William Passman - 1815 - عدد الصفحات: 328
...transfigured and destroyed. There is no possibility of matter ever being augmented or annihilated. Light consists of an inconceivably great number of particles, flowing from a luminous body in all possible directions, and momentarily proceeding to some part of space ; where, after reflecting and... | |
 | Alexander Jamleson - 1821 - عدد الصفحات: 456
...explains the several properties of the colours of light, and of natural bodies, SECTION II. OF LIGHT. 433, Light consists of an inconceivably great number of particles flowing from a luminous body in all directions. A ray of light is the motion of a single particle, which is represented by a straight line,... | |
 | James Ferguson - 1823 - عدد الصفحات: 406
...thermometer when placed in condensed air, as mentioned in a preceding note. % LECTURE VII. OF OPTICS. LIGHT consists of an inconceivably great number of...flowing from a luminous body in all manner of directions ; and these particles are so small, as to surpass all human comprehension. That the number of particles... | |
 | Sir Richard Phillips - 1832 - عدد الصفحات: 286
...Sounds may be conveyed a much greater distance through tubes, than through the open air. OPTICS. 196. Light consists of an inconceivably great number of...from a luminous body in all manner of directions, and which, entering our eyes, produce the perception of the luminous body. By a ray of light is meant... | |
 | James Ferguson - 1839 - عدد الصفحات: 554
...wet bladder glued to it, and not used until it be thoroughly dry. LECT. VII. LECTURE VII. OP OPTICS. LIGHT consists of an inconceivably great number of...flowing from a luminous body in all manner of directions ; and these particles are so small, as to suipass all human comprehension. That the number of particles... | |
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... all human comprehension. That the number of particles of light is inconceivably great, appears from the light of a candle ; which, if there be no obstacle in the way to obstruct the passage of its rays, will fill all the space within two miles of... 